I bought mine 20+ years ago and even though I wasn't 62, I want to say it was only $10-$15 back then.
By far the best value one could ever hope for.
I still have a couple (Cuyahoga Valley & Acadia in Maine) on my bucket list, but establishing these parks to stop any commercial encroachment...is one of the best things this country has ever done.
Huge kudos to Muir, Mather and Roosevelt for having the foresight to do so.
